I believe the Mindsenors camera is derived from the AVRCam with modifications to work via a NXT i2C port for robot operation and use of a USB port (instead of a serial port) for configuration.

AVRCam and CMUCam cannot directly talk to a NXT because they both use a TTL level serial port. I think they both operate at 115 kbps. This type of interface is not available on the NXT. The only high speed interface on NXT is the RS-485 port on sensor port four.

Sat Mar 15, 2008 10:53 pm

Ford Prefect

Guru

Joined: Sat Mar 01, 2008 12:52 pmPosts: 1030

I meanwhile got many problems with the Mindsensor Cam, because the color recognition was awfully bad (all over red-in-red pictures).
The 2nd cam I got in exchange couldn't be recognized by NxtCamView via USB at all.
Both meanwhile have been returned to mindsensors for refund.

But moreover the image processing speed was very slow- too slow for object detecting while driving around.

I'd wish there were some blob patterns already to be downloaded to the cam - sth. like the old Vision Command patterns (1 centered circle, or 5 circles arranged in a line, ore 8 in a block, which all easily can be programmed to light-, color-, or movement recognition; the NxtCamView was too complicated to me) .

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